Data for "Proxy reconstruction of ultraviolet-B irradiance at the Earth’s surface, and its relationship with solar activity and ozone thickness"

UV-B absorbing compound (UAC) data, measured by Fourier Transform infrared (FTIR) microspectroscopy, for Nar Lake Pinus pollen, for each of five replicate measurements per sample. ‘Cal.yr.top’, ‘Cal.yr.btm’ and ‘Cal.yr.mid’ give the upper, lower and midpoint ages for each sample, ‘Aromatic’ is the height of the 1510 cm-1 aromatic peak, OH is the height of the 3300 cm-1 hydroxyl peak, and ‘UACs’ is the aromatic/OH ratio.

本数据集涵盖纳尔湖松属花粉的紫外线B吸收化合物（UV-B absorbing compound, UAC）数据，相关数据通过傅里叶变换红外（FTIR）显微光谱法测得，每个样品设置五次重复测量。其中，"Cal.yr.top"、"Cal.yr.btm"与"Cal.yr.mid"分别代表每个样品的年代上限、年代下限与年代中点；"Aromatic"为1510 cm⁻¹处芳香族特征峰的峰高，"OH"为3300 cm⁻¹处羟基特征峰的峰高，"UACs"为芳香族与羟基的峰高比值。